aThe National Highway Traffic
Safety Administration (NHTSA) typically revises its most recent annual
estimates the following year. The data
here remain unrevised from the date of publication, but may be revised in the
future.

SOURCES

Fatalities:

1960-70: Estimated by U.S. Department of Transportation,
National Highway Traffic Safety Administration from data supplied by U.S.
Department of Health and Human Services, National Center for Health
Statistics, and individual state accident reports (adjusted to 30-day
deaths). Fatalities data prior to 1975 have been adjusted to reflect the
Fatality Analysis Reporting System's definition of a fatal crash as one that
involves a motor vehicle on a trafficway, which results in the death of a
vehicle occupant or a nonmotorist within 30 days of the crash.